Compensating gearing.



A. T. BROWN.

COMPENSATING GEARING. APPLICATION FILED AUG.24. |910.

1,268,429. Patented June 4, 1918.

WITNESSES:

IN TIOR ATTORNEYS A. T. BROWN. COMPENSATING GEARING. APPLICATION FILED AUG.24. 17910.

Patented June 4, 1918.

4 SHEETS-SHEET 2- WITNESSES:

ATTORNEYS A. T. BROWN.

COMPENSATING GEARING. APPLICATION FILED AUG.24. 1910.

I INVE TOR ATTORNEYS Patented June 4, 1918.

4 SHEETS-.SHEET 3.

A.T.BROWN. -COMPENSATING GEARING. APPLICATION FILED AuI;.24. Iglo.

4 SHEETS-SHEET 4.

f 5 IIIII yl: ATTORNEYS Patented June 4, 1918.

il lllTElD STATES ALEXANDER T. BROWN, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE BROWN-LIFE GEAR COMPANY, 0F SYRACUSE, NEW YORK, A. CORPORATION OF NEW YORK.

COMPENSATXNG GEBING.

Speccation of Letters Patent.

Patented danesi, ttig Application tiled August 24, 1910. Serial No. 578,652.

To aZZ whom t may concern.'

Be it known that I, ALEXANDER T. BROWN, of Syracuse, in the county of Onondaga and State of N ew York, have invented a certain new and useful Compensating Gearing, of which the following is a specification.

My invention has for its object .the production of a compensating gearing, in which the compensating or equalizing action is partly restrained in order that considerable propelling power will be delivered at all times to both the driving wheels of the motor vehicle equipped with my compensating gearing; and it consists in the combinations and constructions hereinafter set forth and claimed.

In describing this invention reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is a side elevation, partly in section, of one embodiment of my invention,

one of the shaft sections being shown in cross sectlon and one form of means for delivering the power of the motor to the driving element of the compensating geare ing being also shown.

Fig. 2 is a sectional view of parts seen in Fig. l, parts being omitted.

Fig. 3 is an inner face view of one of the cheek pieces of the casev or driving element of the gearing shown in Fig. 1, the sections of the circumferential wall being also show n displaced in a radial direction from thelr normal position and two of such sections being shown in longitudinal section.

Fig. 4 is an edge view of this compensating gearing, the case or driving element being removed and the contiguous ends of the shaft sections being also shown.

Fig. 5 is a side elevation of parts seen in Fig. 4, a worm gear and a shaft section being shown in dotted lines.

This compensating gearing includes, generally, means for restraining or retarding the equalizing action of the gearing in order that the tractive force willnot be entirely discontinued at any time by the loss of traction of one of the driving wheels of the motor vehicle.

In the illustrated embodiment of my invention, the compensating or equalizing action is restrained by the use of worms and worm gearing.

1, l are worm gears having their hubs 2,

2 mounted on the opposing ends 3, 3, of the shaft sections 4,'4 arranged end to end and usually in axial alinement, these shaft sections being connected either directly or indirectly to the ground or driving wheels of the motor vehicle.

5 designates, as a whole, the driving element'or casing of the gearing, and 6, 6 are a pair of compensating or equalizing members carried by the driving element or casing and having worms 7, 7 meshing respectively with the worm gears 1, 1, said members being also connected together by intermeshing means as spiral gears 8, 8 (Figs. 4 and 5). The members 6, 6 lie upon the peripheries of the opposing gears 1, 1 with their axes in angularly disposed planes substantially tangent' to peripheries of the o posing gears, and with their axes at an ang e to the axes of the opposing gears, and said members 6, 6 transmit turnlng movement of one to the other and to the opposing gears during relative rotation of the opposing gears. Y

The driving element or casing, as here illustrated, comprises cheek pieces 9, 9 and a circumferential wall, the cheek pieces 9, 9 being located4 on opposite sides of the worm gears 1, 1 and having hubs 10, 10 which receive the shaft sections 4, 4' respectively. The hubs 10, 10 are formed with enlarged portions 11, 11 adjacent to the body of the cheek piecs and encircling the hubs 2, 2 of vthe worm gears, bushings 12, 12 being usually interposed between the portions 11, 11 and the hubs 2, 2. Antifriction bearings 13, 13 are shown as mounted between the outer portions of the hubs 10, 10 and the casing not shown, which incloses the shaft sections and 'the compensating gearing.

The circumferential wall of the driving element or casing supports the compensating members 6, 6 and is here shown as formed of transverse separable sections 14, 15 arranged end to end, the sections 14 alternating with the sections 15. Each of the sections 14 supports, and serves as a housf ing for, a pair of the compensating members (3, 6 and is formed with a pair of cylindrical recesses 16, 16 (Figs. 1, 2 and 3) arranged with their axes extending parallel to planes substantially tangent to the worm gears l, 1, portions of the recesses extending side by side and communicating with each other; the recesses are also open on their sides opposed to the worm gears, 1, 1 respectively, and corresponding ends of the recesses are closed and their opposite ends are open. As here shown the recesses 16, 16 of each pair are arranged with their axes inclining lin opposite directions and with end portions overlapping, the recesses communicating through the walls of such overlapping en portions by a passage 1T (Fig. 2) and the outer ends of suchrecesses being open for permitting the insertion and removal of the compensating members 6, 6.

The worms 7, 7 of the compensating members 6, 6 are preferablyv a modification of the Hindley type and extend throughout the greater part of the length of the members 6, 6; and the spiral gears 8, 8 are located at the inner ends of such members 6, 6 and intermesh through the passage 17 connecting the recesses 16, 16. lVhen the compensating members 6, 6 are'in the recesses they find a bearing on the inner faces of the side or cylindrical walls of the recesses 16, 16; and

the inner faces of the end walls 18, 18 at the closed ends of the recesses receive the end thrust 0f the compensating members in-one direction. The compensating members are therefore arranged with their axes substantially coincident with the axes of the cylindrical recesses 16, 16.

The sections 1.5 of the circumferential Wall are interposed between the sections 11 and abut against the ends of the same and are provided with means, as surfaces on fianges y19 which abut against the ends of the sections 11 and also serve to close the onen ends ofthe recesses 16 and to act as a utments for receiving the end thrust of the members 6, 6. The sections 11, 15 of the circumferential wall are held between the cheek pieces 9, 9 and are usuallyconnected thereto by interlocking means as annular mortise-and-tenon joints. The cheek pieces are here shown as formed with annular concentric ribs 20, 21 on their opposing face-s, said ribs forming the mortises; and ,the sections 111, 15 are formed with tenons 22, 22 which fit into the mortises formed with the ribs 20, 21 and also with surfaces 23 and 24 which engage the edge faces of the ribs. The cheek pieces 9, 9 and the sections 14, 15 of the circumferential wall are held together by fastening means, as cap-screws 25 extending transversely through holes 26 in the cheek pieces between the ribs 20, 21 and screwing into openings 27 provided in ears 28 on the peripheral faces of such sections.

One of the cheek pieces 9 is also provided with means. as a gear ring 29 detachably secured thereto as by cap screws 30, andmeshing with a driving pinion 31 on a shaft 32 adapted to be connected to the engine of the motor vehicle.

owever, the power of the engine may be delivered to the driving element or casing 5 in any suitable manner.

The teeth of the worm gears, the worms and the spiral gears are of such inclination With respect to the angle of repose, that the friction between the intermeshing teeth of the worm and spiral gearing will be overcome by the retarding action of the inner driving wheel of the motor vehicle, when turning a corner and consequentlyv motion is transmitted through said gearing to the outer driving wheel of the motor vehicle, causing such outer wheel to vrotate faster than the inner wheel. But the angle of the teeth of the gearing is sufficiently great to create enough sliding .frictional resistance between the teeth of the gears, to prevent one ground wheel from rotating freely and the other from standin still. Thus at all times some power will e delivered to both ground or driving wheels of the motor vehicle. Consequently, if one of the driving or ground wheels of the motor vehicle strikes a slipperyv or infirm place in the road and turns without any tractive action, all the propelling power will not be received by such wheel, as in the type of compensating gears now in use, but some of the power will be delivered to the other driving wheel on firm ground so that the latter wheel will propel the vehicle and carry the driving wheel on infirm or slippery ground over the infirm or slippery place.

That l claim is 1*. A compensating gearing including opposing gears, a drlving element, and connected gearing carried by the driving element and interposed between said opposing gears, members of the gearing lying upon the peripheries of the opposing gears at an angle to the axes of the opposing gears and transmitting turning movement one to the other and to the opposing gears. and

having inclined teeth of such inclination as to normally resist transmission of motion and to transmit motion to the faster ruiming of the opposing gears and to receive motion from the slower running of the gears. substantially as and for the purpose described.

2. A compensating.gearing comprising a driving element. opposing substantially axially alined gears rotatable in said element and having inclined teeth` and connected gearing carried b v the driving element and interposed between opposing gears and transn'iitting turning movement one to the other and to the opposing gears and pro vided with inclined teeth meshing with the opposing gears, the inclination of the teeth being such as to partly restrain the transmission of differential motion and to transmit at all times during the operation of the opposing gears some propellingforce to both opposing gears, substantially as and for the purpose specified.

3. A compensating gearilig including opposing worm gears, and oppositely arranged worliis meshing respectively withtlie gears, tli'e worms being connected together to transmit liiovellient through the worms from either gear to the otller, substantially as` together to transmit motion from either one' of the gears to the other, substantially as alid for the purpose specified.

6. A compensating gearing including worin gears, aiid compensating members formed with intermeshing portions alid with worlns meshing respectively with the 'worm gears, substantially as and for the purpose set forth.

7. A compensating gearing including worlii gears, alid compensating members formed with interlneshing spiral gears and with Worms meshing respectively with the worm gears, substantially as alid for the purpose described.

8. A compensating gearing including worm gears, and compensating liienibers formed with worliis meshing respectively with the worm gears, said members heilig connected together each to transmit liiovement to the other and arranged with their axes parallel to angularly disposed planes substantially tangential to said gears, substantially as and for the purpose set forth.

9. A compensating gearing, including worm` gears, alid compensating members formed with worms meshing respectively with the worm gears, said members ex-` tending iii opposite directions and heilig arranged at an angle to each other alld witll their axes parallel to planes substantially tangential to the worm gears respectively, alid said members having their ends lapping and provided with intermeshing teetll of different inclination from the worm teeth, wlierehy each will be rotated by the other to receive movement therefrom. substaiitially as and for theI purpose specified.

l0. A compensating gearing including worm gears. and compensating members formed with worlils meshing res].iectivel v with the worm gears, said liienihers extending in opposite directions and heilig alranged at an angle to cach other and with their axes parallel to planes substantially tangential to the worm gears respectively, and said members having their ends lapping and provided with interiiieshing spiral gears, substantially as aiid for the purpose set folth.

11. In combination, shaft sections arranged end to end, worlii gears mounted on the opposilig ends of the shaft sections, a drivilig element, aiid compensating members carried by the driving eleliient aiid formed with worliis inesllilig respectively with the worm gears, said members heilig also formed with intel-meshing portions, substalitially as and for the purpose described.

l2. In coliibiliation, shaft sections arranged eild to end, worlii gears mounted on the opposing elids of the shaft sections, a driving element, alld compensating liiellibers carried by the driving elelnelit alid forlned with worms meshing respectively with the vworm gears, and arranged to be turlied in opposite directions thereby. said members extending in opposite directions and being arranged at an aligle to each other alid with their axes parallel to planes substantially tangential to the worm gears alld said lliemhers being provided with internieshing spiral gears. substantially as and for the purpose specified. y

13. In combination, shaft sections arranged end to end, gears mounted on the opposing ends of the shaft sections, a driving elenielit formed with a recess. alid compensating lneans betweeli said gears including a ineliibei' ill the recess and bearing on iliner faces thereof, substantially as and for the purpose set forth.

14. In combination, shaft sections arranged end to end. eears mounted on the opposing ends of the shaft sections. a driving element including a detachable housing formed with a pair of recesses open at corresponding ends and closed at their opposite ends, portions of the walls of the` recesses extending side by side and having a coilnecting passage therethrough. compensating members carried by the housing alid located in the recesses and connected together through said passage, and detachable abutments associated with the driving element for closing the open ends of the recesses, slibstantially as aiid fol: the purpose specified.

l5. In combination, shaft sections arranged end to end, worin gears mounted on y fa with means intermeshing through said pas- I sage, substantially as and for the purpose Y set forth. A

16. In combination, shaft sections arranged end to Aend, Worm gears mounted on 'the opposing ends of the shaft sections, a

members carried by the housing and located in the recesses and being formed With Worms meshing respectively With the Worm gears and With spiral gears intermeshing through said passage, said members abutting against the end Walls atthe closed ends of the recesses, and detachable abutments associated with the driving element for closing the open ends of the recesses and engaging the outer ends of the compensating members, substantially as and for the purpose described.

17. In combination, shaft sections arranged end to end, Worm gears mounted on the opposing ends of the shaft sections, a driving element comprising cheek pieces mounted concentric With the shaft sections on opposite` sides of the worm gearsI and a housing supported between the cheek pieces and formed With recesses arranged with their aXes inclining in opposite directions and extending parallel to planes tangent to the Worm gears respectively, end portions of the Walls of the recesses extending side .by side and having a connecting passage therethrough, said recesses being closed at their inner ends and open at their outer ends, compensating members located in the recesses and formed With Worms meshing with the Worm gears and with spiral gears intermeshing through said passage, the compensating members bearing on the inner faces of the. side vwalls of the recesses and againstv the innerv faces of the Walls at the closed ends of the recesses, detachable abutments located between the cheek pieces for closing the open ends of the recesses, and

coacting With the contiguous ends ofthe compensating members, and fastening means extending transversely through the cheek pieces and into the housing and the abutments, substantially as and for the purpose specied.

18. In combination, shaft sections arranged end to end, gears mounted on the opposing ends of the shaft sections, a driving element comprising cheek pieces mounted concentric with the shaftsections on opposite sides of the gears and a circumferential Wall supported by the cheek pieces, and compensating means carried by the circumferential Wall, substantiallyV as .and for the purpose set forth.

19. In combination, shaft sections arranged end to end, gears mounted on the opposing ends of the s'haftsections, a driving element including cheek pieces mounted concentric with the shaft sections onl opposite sides of the gears and a recessed circumferential wall supported by the cheek pieces, and compensating lmeans coacting With the gears and located in the recessed portion of said Wall and bearing on'linner faces of said recessed portion, substantially as and for the purpose described.

20. In combination, shaft sections arranged end to end, gears mounted on the opposing ends of the 'shaft sections, a driving element including a circumferential wall composed of transverse separable sections arranged end to end, one section thereof being recessed and open at one end, and compensating means coacting With the gears,

walls thereof, and another section of said Wall closing the open end of the vrecessed section, substantially as and for the purpose specified.

21. In combination, shaft sections arranged end to end, gears mounted on the opposing ends of the shaft sections, a driving element comprising cheek pieces mounted concentric with the shaft sections on opposite sides of the gears and a circumferential Wall supported by the cheek pieces, the circumferential wall being composed of transverse separable sections arranged end to end, one section being recessed and open at one end, and compensating means located in the recessed section and coacting with the gears, and another of the sections of the circumferential Wall closing the open end of the recessed section, substantially as and for the purpose set forth.

22. In combination, shaft (sections ar'- -v ranged end to end, gears mounted on the opposing ends of the shaft sections, a driving element Acomprising cheek pieces mounted concentric with the shaft sections on opposite sides of the gears and a circumferenltial Wall supported by the cheek pieces, the circumferential Wall being composed of transverse separable sections arranged end to end, one section being formed with recesses arranged with their axes inclining in opposite directions and extending parallel to planes tangent to the gears, the walls at the inner end portions of the recesses extending side by side and having a' connecting passage therethrough, and the recesses being open at their outer ends, and compensating members located in the recesses and abutting against the inner end walls thereof and bearing on the`v inner faces of the side walls of the recesses, and sections contiguous to the recessed section serving to close the open outer ends of the recesses and hold the compensating members from endwise movement, substantially as and for the purpose described.

23. In combination, shaft sections arranged end to end, .worm gears mounted on the opposing ends of the shaft sections, a driving element comprising cheek pieces mounted concentric with the shaft sections 4ion oppesite sides of the worm gears and a, circumferential wall supported by the cheek pieces, the circumferential wall being composed of transverse sections arranged end to end, one section being formed with recesses 'arranged with their axes inclining in opposite directions and extending parallel to planes tangent to the worm gears, the Walls at the inner end portions of the recesses extending side by side and having a connecting passage therethrough, and the outer ends of the recesses being open, and compensating members located in the recesses and abutting against the inner faces of the Walls at the closed ends thereof and bearing on the inner faces of the side walls of the recesses, the compensating members being formed with worms meshing with the worm gears respectively and -with spiral gears meshing with each other through said passage, and the sections of the circumferential wall contiguous to the recessed section closing the ends of the recesses and holding -the compensating members from endwise movement, substantially as and for the purpose specified.

24. In combination, shaft sections arranged end to end, gears mounted on the opposing ends of the shaft sections, a driving element comprising cheek pieces mounted concentric with the shaft sections on opposite sides of the gears and a circumferential wall supported between the cheek pieces, thecircumferential wall being composed of transverse separable sections arranged end to end, onel section being recessed and open at one end, compensating means located in the recessed section and coacting with the gears, and another 'of the sections of the circumferential wall closing the open end of the recessed section. the cheek p1eces being pro vided on their opposing faces with annular concentric r1bs spaced apart and the circumferential vwall'being formed with tenons on opposite sides thereof fitting into the space between the ribs, and with surfaces for engaging the edge faces of the ribs, and fastening means 'extending transversely through the cheek pieces between the annular ribs and into the sections of the circumferential wall, substantially as and for the purpose set forth.

25. In combination, shaft sections arranged end to end, worm gears mounted on the opposing ends of the shaft sections, a driving element comprising cheek pieces mounted concentric with the shaft sections o n opposite sides of the worm gears and a circumferential Wall supported between the cheek pieces, the cheek pieces and the circumferential wall being united by an annular mortise and tenon joint on opposite sides of said wall, the circumferential wall being composed of transverse separable sections arranged end to end, one section being formed With recesses arranged with their axes inclining in opposite directions and extending parallel to planes tangent to the worm gears, inner end 'portions of the walls of the recesses extending sideby side and having a connecting passage therethrough, and the outer ends of the recesses being open, compensating members located in the recesses and.abutting against the inner faces of the walls at the closed ends of the recesses and bearing on inner faces of the side walls of the recesses, the compensating members being formed with Worms meshing with the worm gears respectively, and also formed with spiral gears meshlng with each other through said passage, and the sections of the circumferential wall contiguous to the recessed section closing the ends of the recesses and holding the compensating members from endwise movement, and fastening members extendin transversely through the cheek pieces an into the sections of the circumferential wall, the fastening members extending through the mortise and tenon joints, substantially as and for the purpose described.

In testimony whereof, I have hereunto signed my name in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 29th day of June, 1910.

ALEXANDER T. BROWN.

Witnesses C. E. ToMLINsoN, F. G. Bomen.. 

